package swust;
import java.util.Scanner;
public class EasyProblem0025 {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int a,b;
		while(scan.hasNext()) {
			a = scan.nextInt();
			b = scan.nextInt();
			System.out.println(a + b);
		}
	}
}
